<div class="calculatorContainer">
    <div class="calculatorMain">
        <div class="calculator">
            <div class="formulas">
                <textarea rows="10" [(ngModel)]="formulas" (keydown)="keyDown($event)"
                placeholder="请输入计算公式"></textarea>
            </div>
            <div class="value">
                {{formulasValue}}
                <span class="placeholder" *ngIf="!formulasValue">计算结果</span>
            </div>
        </div>
        <div class="footerButtons">
            <div class="footerButtonsContent">
                <el-button (click)="calculatorIng()">计算</el-button>
            </div>
        </div>
    </div>
</div>
